Here is the full list of all 31 Bloody Trapland 2: Curiosity achievements.
Stinky unlocked
Unveil last level
Defeat cave boss
Find hidden entrance
Open passage with button
Reached cave world
Defeat mnt boss
Find hidden coin
Found hidden coin
Activate hidden btn
Reached mnt world
Defeat desertboss
Complete 20 levels without any deaths
Picked up coin
Found hidden passage
Reached Desert world
Activate first artifact
First time on a boat
Find temple entrance
Find secret passage
Defeat Skogstrollet
Complete 10 levels without any deaths
Collect first crystal
Complete 5 levels without any deaths
Complete 3 levels without any deaths
Open first secret door
Close encounter
Collect first coin
Complete a level without any deaths